a) A breakdown per standard TfL reporting period of the sums and man-hours spent on Tube track maintenance and replacement for the 24 months prior to 1st May 2016 b) A breakdown per standard TfL reporting period of the sums and man-hours spent on Tube track maintenance and replacement since 1st May 2016 c) Projected sums and man-hours to be spent on Tube track maintenance and replacement for the 12 months ahead (11th August 2017 onwards) or the longest period this data is held for For all data points, if already held, please separate the figures for maintenance and replacement.

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TfL Ref: FOI-1143-1718

Thank you for your request received by Transport for London (TfL) on 11 August 2017 asking for information about tube track maintenance and replacement. I apologise for the delay in replying to you.

Your request has been considered in accordance with the requirements of the Freedom of Information Act and our Information Access Policy. I can confirm that we hold some of the information you require. You asked:

Please provide:

a) A breakdown per standard TfL reporting period of the sums and man-hours spent on Tube track maintenance and replacement for the 24 months prior to 1st May 2016

b) A breakdown per standard TfL reporting period of the sums and man-hours spent on Tube track maintenance and replacement since 1st May 2016

c) Projected sums and man-hours to be spent on Tube track maintenance and replacement for the 12 months ahead (11th August 2017 onwards) or the longest period this data is held for 

Please find the tube track replacement expenditure information in the attached spreadsheet, 24 months prior to 1^st May 2016, since 1^st May 2016 and 12 months from August 2017.

We have been investing significantly in our asset base, with more robust track assets being installed to recover asset condition and improve reliability following a long period of underinvestment in the 1990s.

We also continue to invest in mechanisation to drive efficiency by increasing output and therefore helping to lower the unit rates of renewal delivery.

The more modern asset base has a reduced maintenance requirement due to less failure modes, and this has supported the transition from a reactive to preventative maintenance approach, resulting in a lower overall cost to maintain the assets.

We do not hold records of man hours against track maintenance (either delivered or forecast).

If this is not the information you are looking for, or if you are unable to access it for some reason, please feel free to contact me.

Please see the attached information sheet for details of your right to appeal as well as information on copyright and what to do if you would like to re-use any of the information we have disclosed.

Yours sincerely,

Melissa Nichols

FOI Case Officer

FOI Case Management Team

General Counsel

Transport for London

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